7-Inch Chrome Dual Diaphragm Power Brake Booster Kit with 1-Inch Bore Flat Top Master Cylinder for 1970–1981 Chevy Camaro & Pontiac Firebird

Upgrade the braking system of your 1970-1981 Chevrolet Camaro or Pontiac Firebird with this 7" chrome dual diaphragm power brake booster and 1" bore flat top master cylinder kit from LEED Brakes. Designed for classic GM F-Body vehicles, this combination pairs a compact chrome-plated power brake booster with a polished aluminum dual-bowl master cylinder for power-assisted braking and a clean, custom appearance.

The 7" dual diaphragm booster features a steel housing that is hand-polished before chrome plating for a high-quality finish. Designed to mount directly to your vehicle's factory firewall, the booster provides a compact design suitable for restored and modified Camaro and Firebird engine compartments.

The included 1" bore master cylinder features polished aluminum construction, a dual-bowl reservoir, and a flat top cap. This combination is an option for compatible aftermarket braking systems, including certain multi-piston disc brake configurations that benefit from a 1" bore master cylinder.

GM F-Body Chrome Power Brake Booster and Master Cylinder Specifications

• Vehicle Application: 1970-1981 Chevrolet Camaro and Pontiac Firebird
• Brake Booster Type: Dual Diaphragm
• Brake Booster Diameter: 7 in.
• Brake Booster Material: Steel
• Brake Booster Finish: Chrome
• Master Cylinder Bore Size: 1 in.
• Master Cylinder Design: Dual Bowl, Flat Top
• Master Cylinder Material: Aluminum
• Master Cylinder Finish: Polished
• Reservoir Included: Yes
• Reservoir Material: Aluminum
• Master Cylinder Cap Included: Yes
• Mounting Location: Factory Firewall
• Mounting Hardware: Uses Original
• Quantity: Kit

1" Bore Master Cylinder for Compatible Brake Systems

The included 1" bore master cylinder is an important consideration when selecting components for your braking system. Compared with a larger 1-1/8" bore master cylinder, a 1" bore generally provides greater hydraulic pressure for the same pedal input, although pedal travel and overall braking characteristics depend on the complete system.

This bore size may be suitable for certain aftermarket multi-piston disc brake applications. Always verify the recommended master cylinder bore size for your specific calipers, brake booster, and overall brake system configuration.

Chrome Finish and Factory Firewall Mounting

The chrome-plated 7" dual diaphragm booster and polished aluminum master cylinder provide a coordinated appearance for your classic Camaro or Firebird. The booster is designed to mount directly to the factory firewall using your vehicle's original mounting hardware.

Compatible GM F-Body Vehicles

• 1970-1981 Chevrolet Camaro
• 1970-1981 Pontiac Firebird

Verify your vehicle's brake system configuration and fitment before ordering.

Brake System Compatibility

This kit includes a 7" dual diaphragm power brake booster and 1" bore flat top master cylinder. A proportioning valve is not listed among the included components.

Select the appropriate proportioning valve for your vehicle's front and rear brake configuration, whether front disc/rear drum or four-wheel disc. Confirm that the 1" master cylinder bore is appropriate for your specific braking system.

LEED Brakes Pushrod Measuring Tool PSA Video

LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch this short video to learn how to properly measure pushrod depth and test your measuring tool for accuracy. Incorrect pushrod measurements can contribute to brake drag.

Learn more about why LEED Brakes has added this warning to its products.